He maintained his unbeaten record on his three-year-old debut when he took the Irish 2000 Guineas but suffered his first defeat when facing older horses for the first time in the Sussex Stakes.

Her dam Silver Star was a full-sister to Xaar and one of numerous major winners descended from the American broodmare Best In Show (foaled 1965).

Keane settled the favourite in third place behind Fort Myers and Romero before sending him to the front with a furlong and a half left to run.

Siskin went clear of the field and won "easily" by two and a half lengths from Monarch of Egypt despite being eased down in the final strides.

After settling in a close fourth place, Siskin moved up to take the lead approaching the final furlong and kept of well to win by three quarters of a length and a head from Monarch of Egypt and Royal Lytham.

[13] The flat racing season in Ireland was disrupted by the COVID-19 Pandemic and the Irish 2000 Guineas was run three weeks later than usual on 12 June at the Curragh with no spectators allowed.

Siskin settled in seventh place as Fort Myers and Royal Lytham set the pace, and was switched to the left in the last quarter mile, bumping Armory as he did so, after struggling to obtain a clear run.

Lope Y Fernandez took the lead but Siskin accelerated gain the advantage inside the final furlong and won by one and three quarter lengths from Vatican City.

[17] For his next start the colt traveled to France contest the Prix du Moulin over 1600 metres at Longchamp Racecourse but failed to reproduce his best form as he finished a well-beaten fourth of the six runners behind Persian King.

[20] Siskin began his stud career at the Shadai Stallion Station on Hokkaido with an initial fee of ¥3.5 million (approximately £26,000/€29,000).